Once you pause on the frame you like, either screenshot the picture and save it, or just leave this window open. Then go and "eye-ball" the frame. DO NOT TRACE. have the frame from the cartoon to the side, and try to draw next to it. You don't need to draw the whole frame, just ONE of the characters in that frame.

I hope I explained that well enough.

PS: Try to not get inbetween frames. Generally try to find a frame you think would be good to learn to draw.